31714440 has 64 divisors (see below), whose sum is σ = 95938560. Its totient is φ = 8386560.

The previous prime is 31714433. The next prime is 31714453. The reversal of 31714440 is 4441713.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 31714440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14200 + ... + 16280.

It is an arithmetic number, because the mean of its divisors is an integer number (1499040).

Almost surely, 2^31714440 is an apocalyptic number.

31714440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31714440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47969280).

31714440 is an abundant number, since it is smaller than the sum of its proper divisors (64224120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31714440 is a wasteful number, since it uses less digits than its factorization.

31714440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222 (or 2218 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 31714440 is about 5631.5575110266. The cubic root of 31714440 is about 316.5330159299.

The spelling of 31714440 in words is "thirty-one million, seven hundred fourteen thousand, four hundred forty".